Tube-flanging tool



Oct. 20, 1931.

E. S. CORNELL, JR

TUBE FLANGING TOOL Filed Feb.'10 1931 Patented Oct. 20, 1931 UNITED ISTATES'IPATENFI OFFICE EDWARD s. comm, m, or WATERTOWN, cormncncur, assrenon. fro THE crmsr: comrmns. mconronernn, or WATEBBURY, CONNECTICUT, A. conronn'rrorr TUBE-FLANGING TOOL Application filed February 10, 1981. Serial No. 514,778;

1c tube in such manner as would preclude the use of' or interfere with the movement of fittings, etc., thereupon.

With the ab ve and other objects in view as will appear from the following, my in-' vention consists in a tube-flanging tool comprising a body-portion; a rigid guide-stem ofl'setting from the said body-portion for entry into the end of a'tube-to-be-fi anged;-- a conical deflecting-surface surroundmg the base of the said rigid guide-stem for flaring the end of a tube; and a resilient cushion mounted upon the said guide-stem and engageable with the interior of a tube to cush ion the lateral shocks incident to driving the tool into a tube. My invention further consists in a tubeflanging tool characterized as above and having certain details of construction and combinations of parts as will be hereinafter described and particularly recited in the "claims.

In the accompanying drawings;

Fig. 1 is a view in end elevation of a tubeflanging tool constructed in accordance with my invention;

Fig. 2 is a view thereof in side elevation;

Fig. 3 is a view artly in side elevation and partly in longitu inal section;

Fig. 4 is a view corresponding to Fi 3 but showing the tool inserted into the en of a tube-to-be-flanged and Fig. 5'is a view partly in side elevation and partly in longitudinal section and showing another form which my improved flanging-tool' may assume,

In the embodiment of my invention herein chosen for illustration inFigs. '1 to 4 inclusive, I employ a flanging-tool consisting of a I couplings orother fittings. v It will be'unders'tood by those skilled in cylindrical body-portion 10 havin a drivingface lland-provided with a rigid axial guide-stem -12 between the inner end of which and the body-portion proper is formed a conical deflecting-surface 13 outwardly and downwardly flaring from the base of the said stem and terminating in an annular stops'houlder 14 to limit theflaring action of the tool.

The outer end of the guide-stem 12 is tapered and rounded as shown at 15 and is preferably provided between the tube-deflecting surface 13 and its said rounded terminal 14' with a shallow annular groove'lfi into which extends the lower-edge 17 of a resilient cushioning-sleeve 18 encircling the said stem and formed of rubber or other equivalent cushioning material. The said resilient sleeve 18 is preferably initially smaller in diameterthan theportion of the guide-stem 12 over which it is forced, so as to firmly hug the same.

If desired, the annular groove 16 may be omitted and the resilient cushioning-sleeve 18 extended completely down to the tubedeflectin surface 13 as is shown in Fig. 5. Inthis gure, also, the body-portion 10 is separately formed from the guide-stem 12 which latter is provided with a base 19 fitting into a recess 20 in the 'said body-member, which is of cup-shapedform as shown.

In the use of my improved tube-Hanging tool, the rigid guide-stem 12 together with its cushion-sleeve 18 is inserted into the end of a tube such as 21 (Fig. 4) and then driven further thereinto by means of hammer or mallet blows delivered upon the driving-face '11 of the body-portion, with the effect of rendered harmless in denting or deforming the tube at its point of contactso that the completed flanged tube will readily permit the sliding action thereupon of the usual the art that my invention may assume varied physical forms without departing from my inventive concept and l, therefore, do not limit myself to the specific embodiment herein chosen for illustration, but only as indicated in the appended claims.

I claim:

1. A tube-Hanging tool comprising a bodyportion; a rigid guide stem ofisettmg'from the said bodv-portion for entry into the end of a tube-to-be-flanged; a conical deflectin surface surrounding the base of the said 'rig1d guide-stem for fiarlng the end of a tube; and a resilient cushion mounted upon the said rigid guide-stem and engageable with the interor of a tube to cushion thelateral shocks p incident to driving the tool into a tube.

2. A tube-flanging tool comprising a bodyportion; a rigid guide-stem ofi'setting from the said bod'y-portionand provided with a tapered terminal for entry into the end of 'a tube-to-be-fianged; a conical deflecting-surface surrounding the base of the said rigid guide-stem for flaring the end of a tube; and a resilient cushioning-sleeve encircling the said guide-stem including a portion of the tapered terminal thereof and engageable with the interior of a tube to cushion the lateral shocks incident to driving the tool intothe said tube.

3. A tube-flanging tool comprising 'a bodyportion; a rigid guide-stem ofi'settlng from the said body-portion and formed with a tapered terminal for? entry into, the end of a tube-to-be-fianged; a conical deflecting-surface surrounding the base of the said rigid guide-stem for flaring the end of a tube; and a resilient cushioning-sleeve encircling the said guide-stem for engagement with the interior of a tube to cushion the lateral shocks incident to driving the tool' into the said tube; the said cushioning-sleeve extending from and including a portion of the tapered terminal of the said rigid guide-stem to sub: stantially the said conical tube-deflecting surface surrounding the base of the same.

.In testimony specification. V A

EDWARD S. CORNELL, JR.

aeemea whereof, I have signed this' 

